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Analysis
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max time kernel
144s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
18/03/2023, 00:24
General
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Target
Undertale/mus_zzz_c.ogg
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Size
92KB
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MD5
ab4094359d1b7321185f38b0d187df1a
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SHA1
837af465f053ae7cfefcb73e8d883fed31a10fbe
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SHA256
897804d266b4c70c8e5e20a5b87a25ce76d1457b77c0f3769e188d0b47615c85
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SHA512
ac89eca2045bafff6f93239ac0cad686f9e99e75a742f0e7da4bef7d369ccf80ce61d2dc954fb152568cd2301ae4328d47cb2f27a8000d58dd11f60dd48e9d8b
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SSDEEP
1536:bZTXfTxroq0VosDcU/3epyOAP4SZQMcx5JKX1jOrXHYAFGuSaZt8ZUKmpCY9TCU5:xPTxZ8HDcU3epyHglxK1jO0SBSkt4VmD
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 4 IoCs
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Suspicious use of FindShellTrayWindow 8 IoCs
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Suspicious use of SendNotifyMessage 7 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Undertale\mus_zzz_c.ogg1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\Undertale\mus_zzz_c.ogg"2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4ec 0x5101⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
992KB
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Filesize
208KB
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Filesize
2.7MB
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Filesize
96KB
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Filesize
92KB
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Filesize
68KB
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Filesize
116KB
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Filesize
68KB
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Filesize
68KB
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Filesize
92KB
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Filesize
2.0MB
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Filesize
16.7MB
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Filesize
252KB
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Filesize
132KB
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Filesize
96KB
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Filesize
68KB
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Filesize
68KB
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Filesize
108KB
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Filesize
68KB
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Filesize
96KB
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Filesize
68KB
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Filesize
192KB
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Filesize
412KB
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Filesize
444KB
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Filesize
68KB
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Filesize
368KB
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Filesize
1.5MB
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Filesize
92KB
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Filesize
64KB
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Filesize
188KB
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Filesize
68KB
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Filesize
88KB
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Filesize
788KB
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Filesize
84KB
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Filesize
68KB
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Filesize
72KB
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Filesize
1.5MB
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Filesize
2.7MB